/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *  
 */

/*
 * Created on Sep 7, 2004
 */
package org.apache.jmeter.save.converters;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.save.TestResultWrapper;

import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.mapper.Mapper;

/**
 * XStream Class to convert TestResultWrapper
 * 
 */
public class TestResultWrapperConverter extends AbstractCollectionConverter {

	/**
	 * Returns the converter version; used to check for possible
	 * incompatibilities
	 */
	public static String getVersion() {
		return "$Revision: 646610 $";  //$NON-NLS-1$
	}

	/**
	 * @param arg0
	 */
	public TestResultWrapperConverter(Mapper arg0) {
		super(arg0);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.thoughtworks.xstream.converters.Converter#canConvert(java.lang.Class)
	 */
	public boolean canConvert(Class arg0) {
		return arg0.equals(TestResultWrapper.class);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.thoughtworks.xstream.converters.Converter#marshal(java.lang.Object,
	 *      com.thoughtworks.xstream.io.HierarchicalStreamWriter,
	 *      com.thoughtworks.xstream.converters.MarshallingContext)
	 */
	public void marshal(Object arg0, HierarchicalStreamWriter arg1, MarshallingContext arg2) {
		// Not used, as the <testResult> element is generated by the
		// ResultCollector class
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.thoughtworks.xstream.converters.Converter#unmarshal(com.thoughtworks.xstream.io.HierarchicalStreamReader,
	 *      com.thoughtworks.xstream.converters.UnmarshallingContext)
	 */
	public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
		TestResultWrapper results = new TestResultWrapper();
		Collection samples = new ArrayList();
		String ver = reader.getAttribute("version");  //$NON-NLS-1$
		if (ver == null || ver.length() == 0) {
			ver = "1.0";  //$NON-NLS-1$
		}
		results.setVersion(ver);
		ConversionHelp.setInVersion(ver);// Make sure decoding follows input
											// file
		while (reader.hasMoreChildren()) {
			reader.moveDown();
			SampleResult res = (SampleResult) readItem(reader, context, results);
			samples.add(res);
			reader.moveUp();
		}
		results.setSampleResults(samples);
		return results;
	}
}
